How old is someone named Alonzo?
The average Alonzo is 36 years old.
Half of all living Alonzos are between 14 and 56.
When was Alonzo popular?
Alonzo has never really gone out of style. Parents have chosen it every year for more than a century; its busiest year was 2022.
Popular names of 2022 · The most popular names of the 2020s →
Show the numbers by decade
| Born in | Babies born | Alive today |
|---|---|---|
| 1900s | 808 | 0 |
| 1910s | 2,218 | 0 |
| 1920s | 2,996 | under 100 |
| 1930s | 2,434 | 290 |
| 1940s | 2,652 | 1,200 |
| 1950s | 4,003 | 2,700 |
| 1960s | 4,420 | 3,600 |
| 1970s | 3,522 | 3,200 |
| 1980s | 3,664 | 3,400 |
| 1990s | 4,262 | 4,100 |
| 2000s | 4,329 | 4,300 |
| 2010s | 5,251 | 5,200 |
| 2020s | 3,583 | 3,600 |
How many Alonzos are still alive?
About 31,000 Alonzos are alive in the US today. That's 68% of the roughly 46,000 babies named Alonzo since 1880.
Roughly half of all Alonzos ever born are still living.
What generation is the name Alonzo?
About one in four living Alonzos are in Gen Alpha, born in 2013 or later.
Is Alonzo an old name?
Somewhat. Alonzo is older than 60 in 100 names on AgeByName, but younger than plenty of classics.
Looking ahead: if babies keep getting the name at today's pace, the typical Alonzo will be 37 in 2056, about the same as today.
Is Alonzo a boy or girl name?
Almost entirely boys: 99.6% of living Alonzos are men.
Names the same age as Alonzo
NAME TWIN
Alonzo's name twin is Noel. Of all 3,713 names on AgeByName, Noel's age curve is the closest match to Alonzo's: 92% alike.
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Questions about the name Alonzo
How old is the average Alonzo?
The average Alonzo in the US is 36 years old. The median is 33, so half are older and half younger.
How many people are named Alonzo?
About 31,000 Alonzos are alive in the US today, out of roughly 46,000 babies given the name since 1880.
When was the name Alonzo most popular?
In 2022, when about 650 baby boys were named Alonzo.
Is Alonzo a Gen Alpha name?
Partly. Gen Alpha are the largest group, about 24% of living Alonzos, but the name spans several generations.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). Updated each spring. How we calculate this